{"id":"CVE-2026-6959","sourceIdentifier":"security@hashicorp.com","published":"2026-05-12T20:16:46.267","lastModified":"2026-06-17T11:01:32.957","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"HashiCorp Nomad and Nomad Enterprise prior to 2.0.1 are vulnerable to arbitrary file read and write on the client host as the Nomad process user through a symlink attack. This vulnerability (CVE-2026-6959) is fixed in Nomad 2.0.1, 1.11.5 and 1.10.11."}],"affected":[{"source":"security@hashicorp.com","affectedData":[{"vendor":"HashiCorp","product":"Nomad","defaultStatus":"unaffected","platforms":["64 bit","32 bit","x86","ARM","MacOS","Windows","Linux"],"repo":"https://github.com/hashicorp/nomad","versions":[{"version":"0.9.0","lessThan":"2.0.1","versionType":"semver","status":"affected"}]},{"vendor":"HashiCorp","product":"Nomad Enterprise","defaultStatus":"unaffected","platforms":["64 bit","32 bit","x86","ARM","MacOS","Windows","Linux"],"repo":"https://github.com/hashicorp/nomad","versions":[{"version":"0.9.0","lessThan":"2.0.1","versionType":"semver","status":"affected","changes":[{"at":"1.11.5","status":"unaffected"},{"at":"1.10.11","status":"unaffected"}]}]}]}],"metrics":{"cvssMetricV31":[{"source":"security@hashicorp.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N","baseScore":6.0,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":1.5,"impactScore":4.0}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-05-12T20:14:14.584948Z","id":"CVE-2026-6959","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security@hashicorp.com","type":"Secondary","description":[{"lang":"en","value":"CWE-59"}]}],"references":[{"url":"https://discuss.hashicorp.com/t/hcsec-2026-14-nomad-arbitrary-file-read-write-on-client-host-through-symlink-attack/77416","source":"security@hashicorp.com"}]}